Mass spectrometer vacuum housing and pumping system

Patent · Mon Jan 01 00:00:00 EST 1996

OSTI ID:870529

Coutts, Gerald W ^[1]; Bushman, John F ^[2]; Alger, Terry W ^[3]

---

1. Livermore, CA
2. Oakley, CA
3. Tracy, CA

A vacuum housing and pumping system for a portable gas chromatograph/mass spectrometer (GC/MS). The vacuum housing section of the system has minimum weight for portability while designed and constructed to utilize metal gasket sealed stainless steel to be compatible with high vacuum operation. The vacuum pumping section of the system consists of a sorption (getter) pump to remove atmospheric leakage and outgassing contaminants as well as the gas chromatograph carrier gas (hydrogen) and an ion pump to remove the argon from atmospheric leaks. The overall GC/MS system has broad application to contaminants, hazardous materials, illegal drugs, pollution monitoring, etc., as well as for use by chemical weapon treaty verification teams, due to the light weight and portability thereof.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: Regents of University of California (Oakland, CA)
• Patent Number(s): US 5539204
• OSTI ID: 870529
• Country of Publication: United States
• Language: English

Related Subjects

mass
spectrometer
vacuum
housing
pumping
portable
gas
chromatograph
gc
section
minimum
weight
portability
designed
constructed
utilize
metal
gasket
sealed
stainless
steel
compatible
operation
consists
sorption
getter
pump
remove
atmospheric
leakage
outgassing
contaminants
carrier
hydrogen
argon
leaks
overall
broad
application
hazardous
materials
illegal
drugs
pollution
monitoring
etc
chemical
weapon
treaty
verification
teams
due
light
vacuum pumping
broad application
hazardous material
light weight
mass spectrometer
carrier gas
stainless steel
hazardous materials
gas chromatograph
vacuum pump
pumping section
metal gasket
vacuum housing
metal gas
portable gas
/250/